Siphonic flushing device



May 22', 1928. 1,670,370

R. HEYDRicH Y MARTINEZ SIPHONIC FLUSHING DEVICE Filed March 14, 1927lili Patented May 22, 1928.

UNITED STA ROBERTO HEYDEIGH y MARTINEZ, or HABANA, CUBA.

sIPHoNIo ELUSHING DEVICE.`

Application tiled March 14,1927, Serial No. 175,351, and in Cuba March1, 1927. i

This invention refers't'o a siphoiiicflushu ing device used for thedischarging lof receptacles, and especially referring to. such a deviceused to' operate the` discharge ofwatercloset tanks; and) has for itsmain obj-ect the providingoi' adevice adaptable tanksof thisvkin'd, andalso`l toy anyr other kind-oftank or receptacle, which-device opcratespneumatically, and prevents all kind of" wear, andA also*l allpossibility of obstruction in lilling `or discharging of the V,tank orrece tacle.

` `.llt t e same time the usey of this device "prevents theoverlowingjofl the tank, due to `imperfect conditionof the inlet cocksor of the` lioaters, because before this can' occur, acomplete dischargeofthe tank' will have 'taken place.

, in the course of* this specification, especially those'persons-`skilled inthe art to which tank provided witl'rafsiphonic `flushingdevice according to this invention, l showing an operative position.Y

Fig. 2 is a vertical diametrical sectionin y d'etailandn ony enlargedscale, of the@ device. Fig. isl a horizontal` section on lines i 3-3ofFig. 2.

Figfl is a sideelevation, partially cut,`

of the device.

In Fig; 1 shown a tank 1 such as used in water closets, andin thebottomofiwhichv is an opening 1,"`on` whichis screwed a branch ofthe dischargepipe 2 by means of' a" packing, comprised ofa nut 3 and a washer orpacking ring 4, lplaced between an annular flange 2 integral' with thepipe 2 .andthe bottom of theY tank l. In the lower endof the pipe 2which projects out from "the, tank is'screwed the branch of thedischarge `ipe which lead'sto the` bowl of the water c oset, which is"not shown. p

`A115 is designated a cylindrical'casing apen` at' the top, and which'has in its` botthrough which passes the tom 5, an o enin p iepipe 2whichv yprojects upper part4 of t Withinv the tank 1 and isfastened tothe same by afnut 6 screwed" 4tofthe pipe 2 and `regards to bottom ofthe tankl Mioreadvantages and other considerations pertaining to thisinvention will be deduced abuts against the liange 2 so that thebottoniofsaid casing 5 is spaced slightly with Figures 1 and 2?). i

Covering` the upper part of the pipe 2K is acoverf( in shape oi' a bell,resting on the bottom of the casing 5 and leaving with respect to thewall or the saine an annular chamber 8. The bell 7 presents'in its lowerpart a plurality of spaced openings` -7y to permit the passage oi' theliquid to the space? 9I between the pipe 2 and the bell 7.

Around the*` receptacle 5 isp'laced a second bell shaped cover, 10,whichA has its mouth slightly narrowedV and rests uponia peripheraledgev 5 which constitutes an in` tegral extension with the bottom oi.the annular chamber 11. In the lower part ofthe bell l0 there are aserie-s of spaced openings 12 and yfrom this lower part, over the linesof openings 12 extends a flange 10 which is" prolonged lower than theedge 5" for the purpose which will be explained hereinafter and leavinga space or annular chamber 13 with respect to the body ofthe bell 10'.A

' At the `top of the bell lO'is ,fastenedfan' eye bolt 14, and to itissecured cable 15 which at its.I otherend is fastened to the leverl orarin 16I usual in` tanksof this kind, and which is Aoperable by' -achain 17,*although this last 'arrangement may," be changed, and anyotherforni ofconnection may be vused with 4the belll` 10, so as to besuitable to the `kind of tank to which the device is applied Theworking` of the `device is asv explained in the following:

Assuming the parts placed in theposition shown in Fig. 2, that is, the'bell 1() resting upon the edge 5f ofthe receptacle 5. The levelof thewater ,inv the tankis suitably determined by a float or other means atsuch a point aboverthe bell 10 so that the water which flows through theopenings 12 will illthe chamber l1 not higher than` the upper edge ofthe casing 5, the air,V pressure existing in the space between the bellsand 10, preventing the overiow to the chamber 8. Thewater contained `inthe space 9'will remain at a level with the upper'edzge'of `said ipe 2and the` water containedinthe' is raised as shown in Figure 1, then asthe space between the bells 7 and 1() becomes greater, the air pressurebetween the same will be diminished, and the Water which is in thechamber 11 will overllow into the tank 8 establishing a siphon drafttoward the pipe 2 through the openings 7 and discharging the Waterthrough the pipe E2, to the bowl, as shown by the arrows, in Figures land 2.

In the meantime, upon discontinuing the pull on the chain 17, the bell10 will again rest upon the edge 5 and the discharge Will continue, theWater which is in the tank 1 flowing through the openings l2, under the`lange 10 which extending downwardly belovv the edge 5 approximately tothe bottom of the tank 1, will cause all the Water contained in thetankil to be discharged through the pipe 2.

'When the discharge is completed, there will remain only a Ismallquantity of Water in the chambers 9 and 11 the level of which Will bedillerent, due to the diiference in pressures existing under the bellsand 10, as may be seen in Figure 2. The Water which continues to flowthrough the openings 12, coming from the inlet pipe to the tank can onlyreach a level in the chamber 11 lower than the edge ot the receptacle 5,due t0 the air pressure existing in the chamber 10.

It is evident that Within the principles ol construction beforeexplained, many changes may be made, Without departing from thesubstantial ideasot this invention, so that I do not limit myself tothat which has been described, but Wish that the Letters Patent protectthat which is consigned Within the scope of the following.

Claims: f

1. In a siphonic 'flushing device for the discharging of tanks, adischarge pipe having the end thereof extending into the tank, areceptacle secured around said end, having its bottom above the bottomof the receptacle, a cover in the shape of a bell fixed Within thereceptacle, covering the end of said discharge pipe and spaced from the,

samefand from the receptacle, having in its lower part a plurality ofpassages for the liquid, a second-cover in the shape of a bell vcoveringthe `receptacle and spaced from the same and held spaced from the bottomof said receptacle, having a plurality of passages in the lower part forthe admission of the liquid, a connection to raise the second bell atwill and initiate the discharge of the tank at will, and an imperforateflange covered by said second bell shape cover, ex-

. tending to a plane below the bottom of said fixed receptacle, whensaid bell shaped cover is in place..

.2. In a siphonic,` llushing device for the discharging of tanks orreceptacles, the arrangement of a discharge pipe, a receptacle securedaround the upper part of the end ol the discharge pipe Which projectsWithin the tank or receptacle, and the bottom of which is slightlyseparated from the bottom of the tank or receptacle, a cover ol bellshape covering the said upper part ot the pipe and spaced with relationto same and with the receptacle forming annular chambers with relationlo the one and the other body, having in its lower parta plurality oipassages which puts in communication the liquid contained in eachchamber, a second cover of bell shape covering the receptacle and spacedwith same consti- Lutin" an annular chamber; said second chain er havingin its lower part a.` plurality of passages for the inlet o the liquidcontained in the receiving tank to the annular chamber referred to; a'peripheral border which extends slightly below the supporting platewhich is formed bythe receptacle, and mechanism to cause thevraising ofthe second cover at will.

3. A siphonie flushing device for tanks in which liquid may be stored ata predetermined constant level, including a discharge pipe projectininto saidl tank to n point below said pre etermined level, and normallysubject to atmospheric pressure, a bell enveloping said pipe forming anannular chamber therearound open to atmosphere by way of its dischargepipe, said bell beingopen adjacent the bottom to` ive aecess of liquidfrom Without 'said'cliamben so as to form a water seal for said chamber,a larger `bell submerged below the level in said reservoir envelopingthe small bell vin spaced relation thereto and open adjacent i its lowerend to the liquid in said reservoir, said larger bell enclosing in itsupper part a body of airunder a super-atmospheric pressure equal to thehead of liquid in the reservoir, a receptacle open at its top and closedat the bottom arranged between said bells, communicating with thesmaller bell adjacent the bottom thereof and extending substantially tothe height of the liquid rising in said larger` bell against the airpressure therein, said larger bell being movable upwardly with respectto said smaller bell to reduce the air pressure between said bells andinitiate the low of liquid over the top edge of said receptacle.

4. A siphonic flushing device for tanks in which liquid may be stored atar redetermined constant level, including a ischarge pipe projectinginto said tank to a point below said predetermined level, and normallysubject to atmospheric pressure, a bell enveloping said pipe forming anannular chamber therearound open to atmosphere by way of its dischargepipe, said bell being open adjacent the bottom to give access of liquidfrom Without said chamber, so as t0 lll form a water seal for saidchamber, a larger bell submerged below the level in said reservoirenveloping the small bell in spaced relation thereto and open adjacentits lower end to the liquid in said reservoir, said larger bellenclosing in its upper part a body of air under a super-atmosphericpressure equal to the head of liquid in the reservoir, a receptacle open`at its top and closed at the bottom arranged between said bells,commu-l nicating with the smaller bell adjacent the bottom thereof andextending substantially to the height of the liquid rising in saidlarger bell a ainstkthe air pressure therein, said vlarger ell beingmovable upwardly with respect to said smaller `bell to reduce the airpressure between said bells and initiate the flow of liquid over the topedge of said receptacle, said larger bell having an annular flangeextending to a plane below the level of the bottom of said receptaclewhen said larger bell is in place.

In testimony whereof I have signed my name to this speeication.

nosrmo urrnluca y murrmrz.`

